| Title | Indicator mineral content and geochemistry of glacial sediments from northwest Alberta (NTS 84L, M): new opportunities for mineral exploration |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Plouffe, A ;
Paulen, R C; Smith, I R |
| Source | Geological Survey of Canada, Open File 5121, 2006, 29 pages; 1 CD-ROM, https://doi.org/10.4095/221825  Open Access |
| Links | Canadian Database of Geochemical Surveys, downloadable
files
|
| Links | Banque de données de levés géochimiques du Canada,
fichiers téléchargeables
|
| Year | 2006 |
| Alt Series | Alberta Energy and Utilities Board / Alberta Geological Survey, Special Report 77 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | CD-ROM; digital; on-line |
| Related | This publication is related to Chemistry of kimberlite
indicator minerals and sphalerite derived from glacial sediments of northwest Alberta |
| File format | readme
|
| File format | pdf (Adobe® Acrobat® Reader®); xls (Microsoft Excel 2000); txt |
| Province | Alberta |
| NTS | 84L; 84M |
| Area | Zama Lake; Sousa Creek; Chinchaga River; Rainbow Lake; Hay River; Bistcho Lake; Cameron Hills; Zama City; Petitot River |
| Lat/Long WENS | -120.0000 -118.0000 60.0000 58.0000 |
| Subjects | surficial geology/geomorphology; economic geology; geochemistry; mineral exploration; mineral deposits; drift prospecting; zinc; glacial deposits; glacial landforms; geochemical analyses; heavy mineral
analyses; sphalerite; galena; glaciation; ice movement directions; ice transport directions; Wisconsinian glacial stage; glaciofluvial deposits; dispersal patterns; size fractionation; tills; silts; clays; sands; soils; source rocks; source areas;
hydrothermal deposits; geothermal fluids geochemistry; remobilization; sedimentary rocks; carbonates; lead; shales; kimberlites; diamond; pyrope; chromite; gold; hydrocarbon gases; Fort Nelson Lowland; Alberta Plateau; Pine Point Deposit; Great Slave
Lake Shear Zone; Laurentide Ice Sheet; Keewatin Sector; Natural hazards; Cenozoic; Quaternary |
| Illustrations | sketch maps; photographs; flow charts |
| Program | Targeted Geoscience Initiative (TGI-2), 2003-2005 |
| Program | Northern Resources Development Program |
| Released | 2006 03 01 |
| Abstract | This report presents the results of heavy mineral and geochemical analyses conducted on glacial sediment samples collected in northwest Alberta. This study was undertaken as part of a collaborative
project between the Alberta Geological Survey (Alberta Energy and Utilities Board) and the Geological Survey of Canada (Natural Resources Canada) originally designed to assess the regional occurrence of kimberlite indicator minerals (KIMs) in glacial
deposits. Results indicate that KIMs are absent, or rare, and generally consist of trace contents of pyrope and chromite, the composition of which remains to be assessed with electron microprobe analyses. Gold grains are generally absent from all
samples with a some exceptions where they are present in only small amounts. Of particular significance, and the focus of this report, is the presence of anomalous concentrations of sphalerite grains with secondary galena (up to 1000 sphalerite
grains in the 0.25-0.5 mm size fraction from a bulk till sample) from the south-central sector of the Bistcho Lake (NTS 84M) and north central sector of the Zama Lake (NTS 84L) map sheets. The source of the sphalerite grains in till is unknown.
However, given its geographically restricted presence in the regional sample set, it may point to undiscovered sedimentary hosted zinc deposits in this region, and therefore, represents new opportunities for mineral exploration. |
| GEOSCAN ID | 221825 |
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